Rotary engine.



' No. 746,501. PATENTED DEC. 8, 1903.

' G. GUYER.

- ROTARY ENGINE. APPLICATION FILED MAY 29, 1903.

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ROTARY ENGINE.

APPLICATION FILED MAY 29., 1903.

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UNITED STATES 1 IPatented December 8, 1903.

PATENT OFFICE.

CLINTON GUYER, OF MUNOY, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO WILLIAMG. CRAWFORD, OF MUN CY, PENNSYLVANIA.

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SPECIFICATION forming part of Letters Patent N 0. 746,501, datedDecember 8, 1903.

Application k115i ms 29, 1908.

To all whom it may concern/.-

Be it known that I, CLINTON GUYER, a citi-; zen ofthe United States, anda resident of Money, in the county of Lycoming and State ofPennsylvania, have invented a new and. Improved Rotary Eugine, of whichthe;folf-,= lowing is a full, clear, and exact description.

The object of the invention is to provide a new and improved rotaryengine which is, simple and durable in construction andar ranged toutilize the motive agent very economically and expansively to thefullest advantage.

a difierent position.

view of the piston; and Fig.5 is an enlarged sectional perspective Viewof the abutmentchamber, the abutment, and a part of the piston. f

In the cylinder-heads A and A of the cylinder A is journaled the mainshaft B, carrying at oneouter end a pulley O or the like i fortransmitting the developed power of the engine to other machinery, 0nthe inside of the cylinder-head A isformedor secured a hub A throughwhich extends loosely the main shaft 3, and the end of the hub Aterminates a short distancefromthe cylinder-head A and the peripheralface ofr the said hub A is concentricfto the inner surface of thecylinder A, so that the hub forms, with the cylinder, an annular workingchamber A as plainly shown in the drawings. In this annular workingchamber travel"v one or more piston-heads D and D, preferably two innumber, located diametrically opposite each other, as plainly indicatedin Fig.- 2, and the said piston-heads D and D connect at one end-with aring D fitting the Serial No- 159,272. (No model.)

hub A adjacent to the head A, and the other ends of the saidpiston-heads D and D are integrally connected with a disk D keyed orotherwise secured to the shaft B and extending in the space between thehub A and the cylinder-head A It is understood that the disk D the ringD and the piston-heads D and D form the piston of the engine, thepiston-heads D D being pressed on by the motive agent, as hereinaftermore fully described, so as to rotate the piston, and with it the shaftB, in the direction of the arrow a. (Indicated in Figs. 2 and From thebottom of the annular working chamber A leads an exhaust E, and into thetop of the said working chamber is adapted to swing an abutment F,fulcrumed at F in an abutment-chamber A opening into the annular Workingchamber A as plainly indicated in Figs. 2 and 3. The free end of theabutment F normally rests on the peripheral face of the fixed hub A andthe said free end of theabntment is adapted to be engaged bytheperipheral cam-surface of the pistonhead D or D, so as to swing theabutment F upward back into the abutment-chamber A whenever the pistonhead D or. 11) passes the abutment from the rear tothe front sidethereof.

Into the top of the abutment-chamber A open ports a and 19, leading fromthe interior of the casing G of the admissionand cut-0E valvefor theengine, said casing G being connected with a boiler or other suitablesource of motive-agent supply, and in the said cas ing is mounted tooscillate a valve Gi having its stem G provided with an arm H, connectedby an arm H with the free end of the eccentric-rod I of an eccentric I,secured on the main shaft B. (See Fig. 1.) Now when the engine is inoperation then the eccentric I by its rod 1 and arms H and H imparts arocking motion to the valve G, so as to alternatelyopen and close theports a. and b to intermittently feed steam or other motive agentintothe abutment-chamber Ai -and from the latter by Way of ports or passagesF in fthe said abutment into the working chamber A for the'motive agentto act on the pistonhead D or D as soon as the latter has passed theabutment.

It is understoed that the abutment F fits in between the ring D and thedisk D as plainly shown in Figs. 1 and 5, so that the motive agentpassing through the ports or passages F readily fills the workingchamber A and acts on the corresponding piston-head D or D to turn thepiston, and with it the shaft B, in the direction of the arrow at.

In order to prevent leakage of steam at the time a piston-head D or Dpasses under the abutment F, a packing bar or block J is provided,mounted to slide radiallyin the upper portion of the hub A and thispacking-bar J is held normally in an uppermost position by a spring Jand is prevented from shifting transversely by a suitable cross-bar Jheld in a recess in the front face of the hub A. (See Figs. 2 and 3.)Now this packing-bar J engages the inner face of the ring D as well asthe under side of the piston-head I) or D as the latter moves alongunder the abutment F, so that leakage of steam to the rear of thepiston-head is prevented at the time a piston-head passes under theabutment.

The operation is as follows: When a piston-head D or D has passed theabutment F, (see Fig. 3,) then the valve G uncovers either of the portsa or b, so that the motive agent.

can now pass from the casing G through the abutment-chamber A and theabutment F into the working chamber A to act on the correspondingpiston-head D or D to turn the piston and the shaft in the direction ofthe arrow (1. As soon as the pistonhead D or D has advanced a desireddistance then the valve G closes the corresponding port a or b, so as toshut oi the motive agent from the working chamber, and hence the steamconfined in the working chamber now works expansively and finally passesfrom the working chamber into the exhaust E as soon as the piston-head Dor D has passed the said-exhaust. When this takes place, the otherpiston-head, now at the top, moves past the abutment F, as previouslydescribed, and when this takes place the other port I) or a opens,

so that the motive agent is again admitted to the working chamber to acton the second piston-head, and the above-described operation is thenrepeated.

From the foregoing it will be seen that the steam is out 01f during adesired portion of the stroke of the piston-that is, during its passagefrom the abutment to the exhaust E- to allow the steam to workexpansively. As the steam-pressure is equal on the ring D and the disk Dthe piston is completely balanoed, and hence the engine runs easilywithout undue loss of power and without waste of steam. As the engine iscomposed of comparatively few parts, it is not liable to easily get outof order.

In order to reduce the weight of the engine, the hub A may be formedwith openings or a spider-web.

Having thus described my invention, I

claim as new Patent 1. A rotary engine comprising a cylinder having anannular working chamber, a piston mounted to travel in the said annularworking chamber and consisting of a ring, a disk and a piston-headconnecting the ring with the disk and having a peripheral camface, aswinging abutment mounted to swing into the said annular working chamberand adapted to be engaged by the cam-face of the piston-head, to swingtheabutment outward for the passage of the piston-head, and an admissionand cut-off valve for intermittently feeding the motive agent to theannular working chamber, as set forth.

and desire to secure by Letters 2. A rotary engine comprising a cylinderhaving an annular working chamber, a piston mounted to travel in thesaid annular working chamber and consisting of a ring, a disk and apiston-head connecting the ring with the disk and having a peripheralcamface, a swinging abutment mounted to swing into the said annularworking chamber and adapted to be engaged by the cam-face of thepiston-head, to swing the abutment outward for the passage of thepiston-head, and an admission and cut-off valve for intermittentlyfeeding the motive agent to the annular working chamber, by wayof portsin the said abutment, as set forth.

3. A rotary engine comprising a cylinder, a central cylindrical hubsecured to one cylinder-head and projecting to within a distance of theother cylinder-head, to form with the cylinder an annular workingchamber, a main shaft journaled in the cylinder-heads and extendingthrough the said hub, a piston comprising a ring extending around thehub, a disk extending in the space between the end of the hub and theadjacent cylinder-head, the disk being secured to the said main shaft,and one or more piston-heads, for connecting the said ring with the saiddisk, the pistonhead traveling in the said working chamber and having aperipheral cam-face, and a pivoted abutment adapted to swing in and outof the said working chamber, between the piston-ring and piston-disk,the free end of the abutment normally resting on the said hub and thepiston-head being adapted to be swung outward by the cam-surface of thepiston-head, as set forth.

4:. A rotary engine comprising a cylinder, a central cylindrical hubsecured to one cylinder-head and projecting to within a distance of theother cylinder-head, to form with the cylinder an ann ular workingchamber, a main shaft journaled in the cylinder-heads and extendingthrough the said hub, a piston comprising a ring extending around thehub, a disk extending in the space between the end of the hub and theadjacent cylinder-head, the disk being secured to the said main shaft,

and one or more piston-heads, for connecting and having a peripheralcam-face, a pivoted abutment adapted to swing in and out of the saidworking chamber, between the pistonring and piston-disk, the free end ofthe abutment normally resting on the said hub and the piston-head beingadapted to be swung outward by the cam-surface of the pistonhead, anadmission and cut-01f valve for intermittently feeding the motive agentto the working chamber by way of the said abutment, and means actuatingthe said valve from the said main shaft, as set forth.

5. A rotary engine comprising a cylinder, a central cylindrical hubsecured to one cylinder-head and projecting to within a distance of theother cylinder-head, to form with the cylinder an annular workingchamber, a main shaft journaled in the cylinder-heads and extendingthrough the said hub, a piston comprising a ring extending around thehub, a disk extending in the space between the end of the hub and theadjacent cylinder-head, the disk being secured to the said main shaft,and one or more piston-heads, for connecting the said ring with the saiddisk, the pistonhead traveling in the said working chamberv abutment, toengage the under side of a piston-head at the time the latter swings theabutment outward, as set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

OLIN TON GUYER.

Witnesses:

FREDERICK G. PETERMAN, W. K. BASTIAN.

